diff options
| author | Aleksander Jan Bajkowski <olek2@wp.pl> | 2021-03-22 21:37:16 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-22 16:33:39 -0700 |
| commit | 204c7614738ee4b3fe6269950d367212e790498c (patch) | |
| tree | c2d0095bdf821acc60e7e9c09ef4b7a29b30b276 /drivers/net/dsa/lantiq_gswip.c | |
| parent | a09d042b086202735c4ed64573cdd79933020001 (diff) | |
net: dsa: lantiq: verify compatible strings against hardware
Verify compatible string against hardware.
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/lantiq_gswip.c')
| -rw-r--r-- | drivers/net/dsa/lantiq_gswip.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c index 4cab5cd26928..26d0e3bb5dea 100644 --- a/drivers/net/dsa/lantiq_gswip.c +++ b/drivers/net/dsa/lantiq_gswip.c @@ -1907,7 +1907,7 @@ remove_gphy: static int gswip_probe(struct platform_device *pdev) { struct gswip_priv *priv; - struct device_node *mdio_np, *gphy_fw_np; + struct device_node *np, *mdio_np, *gphy_fw_np; struct device *dev = &pdev->dev; int err; int i; @@ -1944,6 +1944,24 @@ static int gswip_probe(struct platform_device *pdev) priv->dev = dev; version = gswip_switch_r(priv, GSWIP_VERSION); + np = dev->of_node; + switch (version) { + case GSWIP_VERSION_2_0: + case GSWIP_VERSION_2_1: + if (!of_device_is_compatible(np, "lantiq,xrx200-gswip")) + return -EINVAL; + break; + case GSWIP_VERSION_2_2: + case GSWIP_VERSION_2_2_ETC: + if (!of_device_is_compatible(np, "lantiq,xrx300-gswip") && + !of_device_is_compatible(np, "lantiq,xrx330-gswip")) + return -EINVAL; + break; + default: + dev_err(dev, "unknown GSWIP version: 0x%x", version); + return -ENOENT; + } + /* bring up the mdio bus */ gphy_fw_np = of_get_compatible_child(dev->of_node, "lantiq,gphy-fw"); if (gphy_fw_np) { |